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STSPIN840 Setting overcurrent values

mnguyen1
Associate

‎2026-05-04 2:32 PM - last edited on ‎2026-05-04 11:03 PM by

Is the overcurrent protection set to 3A on the STSPIN840? If so, is there a way to change the trip value of the overcurrent protection to better align with its application? I want to change it so that the overcurrent trips at 1A. Thank you!

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Peter BENSCH
ST Employee

‎2026-05-04 11:10 PM

Welcome @mnguyen1, to the community!

The overcurrent protection is designed to protect the MOSFETs and has a fixed rating of typically 3A, max. 3.5A. The low-side shunts connected to SENSEA and SENSEB on each full bridge are used for the control and limiting functions.

Hope that answers your question?

Regards
/Peter

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